Abstract: A holding rail is useful with a storage file having stiff cover sides and an upright clip holding presentation pages. The rail may be used to hold the storage file in a presentation position or to hold the presentation pages contained in the file in a clamped-down position. The rail is also useful for linear measurement. The holding rail is substantially flat with a plurality of upwardly bent legs. At least one upwardly bent leg is located at opposing end portions of the rail. The storage file may be held in a presentation position by placing the edge of each of the stiff cover sides into one of the upwardly bent legs of the rail. The rail thereby supports the storage file with the upright clips racing outwardly and the presentation pages in the presentation position. A plurality of tapered slots or other perforations are formed within the rail. The tapered slots may engage the upright clip, thereby holding the presentation pages of the storage file in a clamped-down position.